Package org.servicemix.components.email

Source Code of org.servicemix.components.email.StubJavaMailSender

/**
*
* Copyright 2005 LogicBlaze, Inc. http://www.logicblaze.com
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
**/
package org.servicemix.components.email;

import junit.framework.Assert;
import org.springframework.mail.MailException;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessagePreparator;

import javax.mail.Session;
import javax.mail.internet.MimeMessage;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

/**
* A stub {@link JavaMailSender} useful for testing.
*
* @version $Revision: 236 $
*/
public class StubJavaMailSender extends Assert implements JavaMailSender {

    private List messages = new ArrayList();
    private Object semaphore = new Object();


    public void send(MimeMessage mimeMessage) throws MailException {
        addMessage(mimeMessage);
    }

    public void send(MimeMessagePreparator preparator) throws MailException {
        try {
            MimeMessage message = createMimeMessage();
            preparator.prepare(message);
            send(message);
        }
        catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    public MimeMessage createMimeMessage() {
        return new MimeMessage((Session) null);
    }

    public MimeMessage createMimeMessage(InputStream inputStream) throws MailException {
        return createMimeMessage();
    }

    public void send(MimeMessage[] messages) throws MailException {
        for (int i = 0; i < messages.length; i++) {
            MimeMessage message = messages[i];
            send(message);
        }
    }

    public void send(MimeMessagePreparator[] preparators) throws MailException {
        for (int i = 0; i < preparators.length; i++) {
            MimeMessagePreparator preparator = preparators[i];
            send(preparator);
        }
    }

    public void send(SimpleMailMessage simpleMailMessage) throws MailException {
        addMessage(simpleMailMessage);
    }

    public void send(SimpleMailMessage[] simpleMailMessages) throws MailException {
        for (int i = 0; i < simpleMailMessages.length; i++) {
            SimpleMailMessage simpleMailMessage = simpleMailMessages[i];
            send(simpleMailMessage);
        }
    }


    /**
     * @return all the messages on the list so far, clearing the buffer
     */
    public List flushMessages() {
        synchronized (semaphore) {
            List answer = new ArrayList(messages);
            messages.clear();
            return answer;
        }
    }

    public synchronized List getMessages() {
        synchronized (semaphore) {
            return new ArrayList(messages);
        }
    }

    public void addMessage(Object message) {
        synchronized (semaphore) {
            messages.add(message);
            semaphore.notifyAll();
        }
    }

    public int getMessageCount() {
        synchronized (semaphore) {
            return messages.size();
        }
    }


    public void waitForMessagesToArrive(int messageCount) {
        System.out.println("Waiting for message to arrive");

        long start = System.currentTimeMillis();

        for (int i = 0; i < messageCount; i++) {
            try {
                if (hasReceivedMessages(messageCount)) {
                    break;
                }
                synchronized (semaphore) {
                    semaphore.wait(4000);
                }
            }
            catch (InterruptedException e) {
                System.out.println("Caught: " + e);
            }
        }
        long end = System.currentTimeMillis() - start;

        System.out.println("End of wait for " + end + " millis");
    }


    /**
     * Performs a testing assertion that the correct number of messages have been received
     *
     * @param messageCount
     */
    public void assertMessagesReceived(int messageCount) {
        waitForMessagesToArrive(messageCount);

        assertEquals("expected number of messages", messageCount, getMessageCount());
        System.out.println("Received messages:  " + getMessages());
    }

    public boolean hasReceivedMessage() {
        return getMessageCount() == 0;
    }

    public boolean hasReceivedMessages(int messageCount) {
        return getMessageCount() >= messageCount;
    }
}
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